Title :
Digital simulation of an Interline Dynamic Voltage Restorer for Voltage compensation
Author :
Sudha, R. ; Usharani, P. ; Reddy, S. Rama
Author_Institution :
Power Electron. & Drives, Jerusalem Coll. of Eng., Chennai, India
Abstract :
The Dynamic Voltage Restorer (DVR) provides an advanced and economical solution for voltage sag/swell problems. The voltage-restoration process involves real-power injection into the distribution system. The Interline DVR (IDVR) proposed in this paper provides a way to compensate the voltage deviation caused in a feeder. The IDVR consists of several DVRs connected to different distribution feeders in the power system sharing common energy storage. Here, one DVR in the IDVR system works in voltage-sag/swell compensation mode while the other DVR in the IDVR system operate in power-flow control mode. The single phase model of the IDVR system is illustrated which is operated by Multiple Pulse Width Modulation (PWM). Open-loop for sag/swell and closed-loop control for voltage swell for a simple system is modeled and simulated using MATLAB software. The simulation results are presented to demonstrate the effectiveness of the proposed IDVR system.
Keywords :
closed loop systems; power control; power supply quality; closed-loop control; digital simulation; distribution feeders; interline dynamic voltage restorer; multiple pulse width modulation; power-flow control mode; swell problems; voltage compensation; voltage sag; Energy storage; Open loop systems; Pulse width modulation; Reactive power; Rectifiers; Voltage control; Voltage fluctuations; Interline Power Flow Controller (IPFC); Multiple Pulse width modulation(PWM); Total Harmonic Distortion(THD); power flow control mode; series compensation;
Conference_Titel :
Computer, Communication and Electrical Technology (ICCCET), 2011 International Conference on
Conference_Location :
Tamilnadu
Print_ISBN :
978-1-4244-9393-7
DOI :
10.1109/ICCCET.2011.5762506
